Are you ready to give your mathematics skills a boost? These simple math tricks can help you perform calculations more quickly and easily. They also come in handy if you want to impress your teacher, parents, or friends.
Are you ready to give your mathematics skills a boost? These simple math tricks can help you perform calculations more quickly and easily. They also come in handy if you want to impress your teacher, parents, or friends.
If you multiply 6 by an even number, the answer will end with the same digit. The number in the tens place will be half of the number in the ones place.
Example: 6 x 4 = 24
The answer is 2.
The answer is 37.
The answer is the three digit number
Examples: 371371 gives you 371 or 552552 gives you 552.
The result will be a six digit number that repeats the three digit number.
Example: 456 becomes 456456.
This is a quick way to multiply two digit numbers by 11 in your head.
Examples: 72 x 11 = 792
57 x 11 = 5 _ 7, but 5 + 7 = 12, so put 2 in the space and add the 1 to the 5 to get 627
To remember the first seven digits of pi, count the number of letters in each word of the sentence:
“How I wish I could calculate pi.”
This gives 3.141592
The number will contain the digits 1, 2, 4, 5, 7, and 8.
Example: The number 6 yields the answer 714285.
To easily multiply two double digit numbers, use their distance from 100 to simplify the math:
You’ve got 210 pieces of pizza and want to know whether or not you can split them evenly within your group. Rather than whip out the calculator, use these simple shortcuts to do the math in your head:
Example: The 210 slices of pizza may be evenly distributed into groups of 2, 3, 6, 10.
Everyone knows you can count on your fingers. Did you realize you can use them for multiplication? A simple way to do the “9” multiplication table is to place both hands in front of you with fingers and thumbs extended. To multiply 9 by a number, fold down that number of finger, counting from the left.
Examples: To multiply 9 by 5, fold down the fifth finger from the left. Count fingers on either side of the “fold” to get the answer. In this case, the answer is 45.
To multiply 9 times 6, fold down the sixth finger, giving an answer of